Cornet.



c. G. CONN.

CORNET.

APPLICATION FILED NOV. 3, 1914.

Patented Mar. 6, 1917.

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C. G. CONN.

CORNET.v

APPLICATION mzn'nov. a. 1914.

Patented Mar. 6, 1917.

2 SHEETS--SHEET 2 ...wmimlln iii CHARLES G. CONN, OF ELKHART, INDIANA.

CORNET.

Specification of Letters Patent.

Patented Mar. 6, 1917.

Application filed November 3, 1914. Serial No. 870,133.

To all whom t may concern.'

lle it known Athat l, CHARLES G. CONN, a (zi-zen ci the United States ofAmerica, residing at lillkhart, in the county of Elkhart and State otindiana, have invented certain new and useful improvements in Cornets,of which the following is a specification.

The object of my invention is to provide means for extending the valveslides of' a cornet or trumpet, when the tuning slide is drav-Jn; andwith these and other objects in view my invention consists of the partsand combination of parts as will be hereinafter more fully set forth.

Tn thc drawing Figure 1 is a side elevation of a cornet embodying myinvention;

Fig. 2 is a reverse side elevation of Fig. 1;

Fig. 3 is a bottom plan vieiv of Fig. 1 with the parts in normalposition;

Fig. 4C is a similar view with the parts shown in extended position;

Fig. 5 is a detail view.

The reference numerals 1, 2 and 3 designate finger key valves of anyapproved construction. l is the bell of the instrument and 5 the mouthpipe of' the instrument.

The quick change or timing slide 6 is illustrated in the drawings asforming a connection between the mouth pipe and the finger valves, andto this slide is secured a rod 7, Which is threaded at one end as at 8,and has a head 9. is a nut on the screw threads 8 and adjustablethereon, and adapted to cooperate with the fixed stop 11 mounted on thefixed tube 12, said stop 11 being provided With a. hole in which the rod7 slides. The opposite end of the rod 10 is secured to the tuningslideat Ga. By setting the nut 10 at different distances from the head9, it Will thcn be possible to d etermine beforehand the length ofadjustment to be given to the slide G, as the striking of the nut 10Vagainst the stop 11 vvill prevent the further drawing out of the slide.

The valve slides 13 and 14 slidably mounted in the valve crooks 15 and1G respectively, are connected with the tuning slide so that they may beoperated in unison with the timing slide, and such connection Will 110Wbe described.

A pintle bearing 17 is rigidly secured to the crook 16 and on thisbearing is pivotally mounted by means of the pin 18, a rocker 19. 9.0 isa` link, one end of which is pivotally connected to the rocker, Whilethe other end is pivotally connected to the post 21 which is rigidlysecured to the valve slide 22 is another link, one end of which ispivotally connected to one end of the rocker 19, said rocker beingsecured intermediate its ends to the post which is rigidly secured tothe valve slide Beyond its connection With the valve slide lil, the linkis provided with pins or lugs 2-1 and on both its upper and lower face.The tuning slide 6 is provided ivith fingers 2G, there being one aboveand one beloiv the link which are adapted, when the tuning slide isoperated to contact with the pins 25 and Q4 to move the f rocker Whenthe tuning slide (i is extended and returned to its normal position. ItWill be seen from Fig. 5 that the link 2O extends betiveen the legs ofthe crook 27 of the center key linger' valve between which I have formeda slot bearing 28 for the link 20 for the latter to slide back and forthin when actuated by the rocker 19. With the parts in the position shownin F ig. 3, the instrument is set for its normal pitch. The screw nut l0is adjusted on the bearing 7 for either high or low pitch and thusdetermines, upon the abutment of the nut against the stop 11, the lengthof travel of the valve slides.

Assuming' that the screw nut 10 has been adjusted as shown in Figs. 1and 3 and it is desired to make a quick change to A, the tuning slide 6is extended, thus bringing the fingers 26 into contact With the pins orlugs 25 on the link .QzZ Now a. continued movement, in extending thetuning slide 6 results in said 'fingers 2G pulling the link Q2 bodily inthe directionof the extension and said link by reason of its connection23 with the slide 14C extends this slide. Vhile these movements aretaking place, the rocker 19 is rocked upon its pivot 18, thus causing'the link 2() to be moved bodily in longitudinal direction, the link byreason of its pivotal connection 21, extending the slide 13. Theextension of all three slides G, 13 and 141e is ultimately stopped whenthe nut 10 strikes the stop 11.

The tuning slide (3 is free to move a distance equal to the distancebetween the pins or lugs 24; and 25 in both directions, Withoutoperating the links and rocker or the slides 13 and 1st, therebyenabling me to adjust thetiming slide G, Whenever it is desired, Withoutmoving the other slides; but, as soon as the fingers 26 contact With thelugs or pins 2-l and 25 any further movement of the tunlil() ing slide 6results in an automatic adjustment of the slides 13 and lll for a higheror lower pitch according to the direction in Wliicli the slides aremoved.

By reason of my improved mechanism for adjusting` the slidessimultaneously, I am enabled to accurately and quickly adjust theinstrument to a higher or lower pitch.

l claim A cornet having tivo valve Slides and aI quick change or tuning`slide, a rocker pivotally mounted on the i'lxed poi-tion of the cornet7a link connecting one end of said rocker to one of said valve slides andal second link connecting the other end of said rocker to the secondoi.' said valve slides,

lugs on one of said links, and means carried by the quick change ortuning slide adapted to contact alternately with said lugs, Whereby therookenis operated during part of the movement oit the quick change ortuning slide to move the said valve slides, an adjustable stop beingprovided 'for the quick change or tuning` slide to limit the movementthereof.

The foregoing specilication signed at Elkhartj indiana7 this 13th day ofctoloer, 1914-.

CHARLES G. CONN.

ln presence of Dnssix FLENAR, HELEN HARRISON.

Copies of this patent may be obtained for cents each, by addressing theCommissioner of Patents, Washington, D.

